i also have the same problem with the exemples from the tutorias:
Error initializing disko: no such table: Plugins [query was: select Plug.*,Cat.CategoryName,Types.PluginTypeName from Plugins Plug left join Category Cat ON Cat.ID = Plug.CategoryID left join PluginTypes Types ON Types.ID = Plug.PluginTypeID where Types.PluginTypeName = 'BACKEND_PLUGIN' and Plug.Active = 'Y']
Any help?